Build a vertical aquaponic veggie & fish farm for small yards & houses This low-cost vertical aquaponic system can grow leafy greens, herbs and raise fish for a small family year round, and it fits in a 5' by 3' space. Sean Brady, the aquaponics projects coordinator at the Center for Sustainable Aquaponics and Nourish the Planet in Loveland, Colo., showed us how to build a system from scrap he found around the greenhouse. We published a version of this how-to guide at engineeringforchange.org, and it's one of the good ones, so we'd like to share it with Instructables, too. What it is A vertical aquaponic system grows vegetables without soil in columns above a fish tank. By growing vertically, you can produce about twice the amount of plants as you can with a hydroponic system of the same area. The system puts fish waste to work as fertilizer for crops. You do have to replace lost water as needed, power the pump and feed the fish. Materials You can use these or swap out anything for whatever you have on hand. Build time About two hours.
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Tin can antenna Assemble the probe and mount in can Now you'll need that bit of wire. You'll need a soldering iron or a friend with one as well. Cut the wire so that when it is stuck in the connector as shown, the total length of both the brass tube and wire sticking out past the connector is 1.21". When you've got your wire correctly sized, solder it into the connector keeping it as straight and upright as you can. Connect your antenna to your wireless card or access point To use your cantenna, you'll need a special cable commonly called a "Pig Tail". You'll want to have a wireless NIC or access point with an external antenna connector. Hook up your cable, point the antenna at a friend's, and see how far you can stretch you network. This antenna has linear polarization. For more information, check out these resources: Go to the Homebrew WiFi Antenna Shootout Go to the Wireless Home
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